Remove additional output when initializing project

[schnie]

Description

This PR just removes the extra help text we recently added to the CLI. It's redundant with our onboarding commands.

In our onboarding flows, we'll be specifying the init and the cd commands in a single line that can be pasted. It's confusing and redundant to tell the user to cd into the project directory when we've already done it.

Before:

After:

After, without the cd command:

🎟 Issue(s)

Related #XXX

🧪 Functional Testing

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📸 Screenshots

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📋 Checklist

• Rebased from the main (or release if patching) branch (before testing)
• Ran make test before taking out of draft
• Ran make lint before taking out of draft
• Added/updated applicable tests
• Tested against Astro-API (if necessary).
• Tested against Houston-API and Astronomer (if necessary).
• Communicated to/tagged owners of respective clients potentially impacted by these changes.
• Updated any related documentation